func (gamestate *GameState) StartLevel(levelIndex int, screen *tl.Screen) {
gamestate.LevelIndex = levelIndex
gamestate.Level = gamestate.CreateLevelByIndex()
gamestate.Bullets = make([]*Bullet, 0)
gamestate.Player = NewPlayer(gamestate.Level.StartX, gamestate.Level.StartY)
gamestate.Level.AddEntity(gamestate.Player)
screen.SetLevel(gamestate.Level)
screen.AddEntity(gamestate.Player.Score)
screen.AddEntity(gamestate.Player.Level)
screen.AddEntity(gamestate.Player.Health)
// animate the beasts
go func() {
for {
for _, enemy := range TheGameState.Level.Enemies {
enemy.Animate()
}
time.Sleep(500 * time.Millisecond)
}
}()
}
